You are implementing a method in a Java 8 application to calculate the tax on a given amount. You made this method abstract. What other characteristics can you add to it in addition to it being abstract? code example

Example: how to create an abstract method in java

abstract class Scratch{
  // cannot be static
    abstract public void hello();
    abstract String randNum();
}

interface Other{
  //all methods in an interface are abstract
    public void bye();
    String randDouble();
}